M203 40mm Laser Boresight

Description:NEW - Meprolight BS-203 Laser Boresight Module for the Colt M203 40mm Grenade Launcher (also works with other 40mm barrels). 635nM Red Laser, Used for dry zeroing, Works with 40mm barrels only, Not for use on 37mm launchers, Not required for live fire zeroing. $400.00 +S&I.